CN214851000U

CN214851000U - Mining intrinsically safe IO signal device

Info

Publication number: CN214851000U
Application number: CN202121309903.XU
Authority: CN
Inventors: 刘隆超; 武凯洋; 季桢; 王益红
Original assignee: Taian Zhongcheng Automation Equipment Co ltd
Current assignee: Taian Zhongcheng Automation Equipment Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-11-23
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a safe type IO signal device of mining essence relates to colliery electrical automation technical field, include: this ampere of power module, this ampere of power module's GND end is connected with voltage stabilizing module's first end electricity, voltage stabilizing module's second end with this ampere of power module's voltage output end is connected with isolation optoelectronic coupler's this ampere of input signal terminal electricity, isolation optoelectronic coupler's output signal terminal is connected with the direct current power terminal electricity. The voltage output by the intrinsic safety power supply module is input to an intrinsic safety input signal terminal of the isolation photoelectric coupler after being processed by the voltage stabilizing module, and the input voltage meets the intrinsic safety requirement of coal mine operation. The signal voltage output by the isolation photoelectric coupler meets the voltage requirement of the intrinsically safe electrical equipment under the action of the direct current power supply terminal. The mining intrinsically safe IO signal device can be used in a coal mine intrinsically safe electrical switch device, and is simple and convenient to use.

Description

Mining intrinsically safe IO signal device

Technical Field

The utility model relates to a colliery electrical automation technical field, concretely relates to mining safe type IO signal device of essence.

Background

The underground coal mine contains flammable and explosive gases such as gas, dust and the like. Although most of underground coal mine electrical equipment is explosion-proof, the switch equipment can place an operating switch outside an explosion-proof shell or penetrate through the explosion-proof shell in a hole digging mode for convenience of operation, the shell needs to be opened due to aging of a sealing element and maintenance and repair of the equipment, flammable and explosive gas in a coal mine enters the explosion-proof shell, and the flammable and explosive gas entering the shell can be ignited by electric sparks generated when the equipment is started or fails.

For coal mine safety, it is now necessary to introduce intrinsically safe products. The coal mine intrinsic safety product refers to an intrinsic safety product which cannot cause the explosion of flammable and explosive gases in the surrounding environment whether the intrinsic safety product is internally short-circuited or open-circuited. The existing intrinsic safety products of the coal mine are provided with isolation elements for isolating input and output of signals of electrical equipment of the coal mine, so that the voltage of an intrinsic safety side is ensured to belong to safe voltage, and the voltage of a side connected with the electrical equipment also meets the requirements of the electrical equipment.

However, most of the existing isolation elements pass through an isolation relay, the manufacturing process is complicated, the reliability is poor, and most of the existing isolation elements are special devices for specific equipment and have no universality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem, proposed following technical scheme:

in a first aspect, an embodiment of the utility model provides a mining intrinsically safe type IO signal device, include: this ampere of power module, this ampere of power module's GND end is connected with voltage stabilizing module's first end electricity, voltage stabilizing module's second end with this ampere of power module's voltage output end is connected with isolation optoelectronic coupler's this ampere of input signal terminal electricity, isolation optoelectronic coupler's output signal terminal is connected with the direct current power terminal electricity.

By adopting the implementation mode, the voltage output by the intrinsic safety power supply module is input to the intrinsic safety input signal terminal of the isolation photoelectric coupler after being processed by the voltage stabilizing module, and the input voltage meets the intrinsic safety requirement of coal mine operation. The signal voltage output by the isolation photoelectric coupler meets the voltage requirement of the intrinsically safe electrical equipment under the action of the direct current power supply terminal. The mining intrinsically safe IO signal device can be used in a coal mine intrinsically safe electrical switch device, and is simple and convenient to use.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the voltage stabilizing module includes a first voltage regulator tube and a second voltage regulator tube, and the first voltage regulator tube and the second voltage regulator tube are connected in parallel. The first voltage-regulator tube and the second voltage-regulator tube jointly stabilize the intrinsic safety voltage output by the intrinsic safety power module, and stable intrinsic safety type direct current 5V voltage is guaranteed to be provided for a subsequent circuit. In this embodiment, the first and second stabilivolt tubes are both C5V1 stabilivolt tubes.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, a first resistor is disposed between a voltage output end of the intrinsically safe power supply module and the voltage stabilizing module, a first end of the first resistor is electrically connected to the voltage output end of the intrinsically safe power supply module, and a second end of the first resistor is electrically connected to a second end of the voltage stabilizing module.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the second end of the first resistor is electrically connected to the first end of the second resistor, and the second end of the second terminal is electrically connected to the intrinsic safety input signal terminal of the isolation photocoupler. The first resistor and the second resistor are current-limiting resistors, and the isolation photoelectric coupler is burnt out due to overlarge current caused by harmonic interference or current surge.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the input end of the intrinsically safe power supply module is electrically connected to an ac input power terminal. And the alternating current input power supply terminal is used for accessing an alternating current power supply signal and outputting a 5V intrinsic safety direct current signal by the intrinsic safety power supply module.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the ac input power terminal is connected to an ac input power supply, the ac input power supply is designed to have a wide voltage, and a voltage range of the ac input power supply is 85-265V. The alternating-current input power supply in the embodiment adopts a wide-voltage design, and is suitable for most of mining intrinsically safe switch equipment.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the intrinsically safe power module is an intrinsically safe power module SPA-2.5S5W, an output power of a voltage output end of the intrinsically safe power module is 5V, the direct-current power supply terminal is a direct-current 24V terminal, and an output voltage is 24V.

With reference to the first aspect, in a seventh possible implementation manner of the first aspect, the isolation photocoupler is provided with a plurality of isolation photocouplers, and each isolation photocoupler includes a plurality of intrinsic safety input signal terminals and a plurality of output signal terminals. The isolation photoelectric couplers are arranged and comprise a plurality of intrinsic safety input signal terminals and a plurality of output signal terminals, so that the signal isolation element is provided with a plurality of input and output terminals, and more mining intrinsically safe switch devices are met.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, a plurality of the isolation photocouplers are combined to form one input and output signal isolation element.

With reference to the seventh or eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the intrinsic safety input signal terminal and the output signal terminal of the isolation photocoupler are both line-pressing connection terminals. The line ball formula binding post wiring is convenient, can realize with the quick wiring of colliery essence safety type electrical switchgear.

Drawings

Fig. 1 is a schematic structural diagram of a mine intrinsically safe IO signal device according to an embodiment of the present invention;

in fig. 1, the symbols are represented as:

the circuit comprises a 1-intrinsic safety power supply module, a 2-isolation photoelectric coupler, a 3-intrinsic safety input signal terminal, a 4-output signal terminal, a 5-direct current power supply terminal, a 6-first voltage regulator tube, a 7-second voltage regulator tube, a 8-first resistor, a 9-second resistor and a 10-alternating current input power supply terminal.

Detailed Description

The present invention will be described with reference to the accompanying drawings and embodiments.

Fig. 1 is the embodiment of the utility model provides a structural schematic diagram of mining intrinsically safe type IO signalling device, refer to fig. 1, the embodiment of the utility model provides a mining intrinsically safe type IO signalling device, include: the intrinsic safety power supply module 1 is characterized in that the intrinsic safety power supply module 1 is an intrinsic safety power supply module SPA-2.5S5W, and the output power of a voltage output end of the intrinsic safety power supply module 1 is 5V. The utility model discloses a high-voltage isolation optoelectronic coupler, including this ampere of power module 1, voltage stabilizing module, isolation optoelectronic coupler 2, DC power supply terminal 5, the GND end of this ampere of power module 1 is connected with voltage stabilizing module's first end electricity, voltage stabilizing module's second end with this ampere of power module 1's voltage output end is connected with isolation optoelectronic coupler 2's this ampere of input signal terminal 3 electricity, isolation optoelectronic coupler 2's output signal terminal 4 is connected with DC power supply terminal 5 electricity, DC power supply terminal 5 is direct current 24V terminal, and output voltage is 24V.

The voltage output by the intrinsic safety power supply module 1 is input to an intrinsic safety input signal terminal 3 of the isolation photoelectric coupler 2 after being processed by the voltage stabilizing module, and the input voltage meets the intrinsic safety requirement of coal mine operation. Under the action of the direct current power supply terminal 5, the signal voltage output by the isolation photoelectric coupler 2 meets the voltage requirement of the intrinsically safe electrical equipment, such as PLC, DSP and the like. The mining intrinsically safe IO signal device can be used in a coal mine intrinsically safe electrical switch device, and is simple and convenient to use.

Further, the voltage stabilizing module comprises a first voltage stabilizing tube 6 and a second voltage stabilizing tube 7, the first voltage stabilizing tube 6 and the second voltage stabilizing tube 7 are connected in parallel, and the first voltage stabilizing tube 6 and the second voltage stabilizing tube 7 are connected in parallel. The first voltage-regulator tube 6 and the second voltage-regulator tube 7 jointly stabilize the intrinsic safety voltage output by the intrinsic safety power module 1, and stable intrinsic safety type direct current 5V voltage is guaranteed to be provided for subsequent circuits. In this embodiment, the first and

second voltage regulators

6 and 7 are both C5V1 voltage regulators.

The voltage output end of the intrinsic safety power module 1 is provided with a first resistor 8 between the voltage stabilizing modules, the first end of the first resistor 8 is electrically connected with the voltage output end of the intrinsic safety power module 1, and the second end of the first resistor 8 is electrically connected with the second end of the voltage stabilizing module. The second end of the first resistor 8 is electrically connected with the first end of the second resistor 9, and the second end of the second terminal is electrically connected with the intrinsic safety input signal terminal 3 of the isolation photocoupler 2. The first resistor 8 and the second resistor 9 are current limiting resistors, and are used for preventing the isolating photoelectric coupler 2 from being burnt out due to overlarge current caused by harmonic interference or current surge.

In this embodiment, the input terminal of the intrinsically safe power module 1 is electrically connected to an ac input power terminal 10. The ac input power terminal 10 is used for accessing an ac power signal and outputting a 5V intrinsically safe dc signal from the intrinsically safe power module 1. The alternating current input power supply is designed to be wide in voltage, and the voltage range of the alternating current input power supply is 85-265V. The alternating-current input power supply in the embodiment adopts a wide-voltage design, and is suitable for most of mining intrinsically safe switch equipment.

In this embodiment, the isolation photocoupler 2 is provided in plurality, and the isolation photocoupler 2 includes a plurality of intrinsically safe input signal terminals 3 and a plurality of output signal terminals 4. Specifically, the isolation photocoupler 2 is provided with 4 in the present embodiment, and each isolation photocoupler 2 includes 4 intrinsically safe

input signal terminals

3 and 4 output signal terminals 4, and constitutes 16-point input and 16-point output. Set up a plurality of isolation optoelectronic couplers 2, isolation optoelectronic coupler 2 includes a plurality of intrinsically safe input signal terminals 3 and a plurality of output signal terminal 4 moreover, has realized that the signal isolation component has a plurality of input and output terminal to satisfy more mining intrinsically safe switchgear.

A plurality of the isolation photocouplers 2 are combined to be an input and output signal isolation element. The intrinsic safety input signal terminal 3 and the output signal terminal 4 of the isolation photoelectric coupler 2 are both wire pressing type wiring terminals. The line ball formula binding post wiring is convenient, can realize with the quick wiring of colliery essence safety type electrical switchgear.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and if it is replaced, the present invention is only combined with and described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. The utility model provides a mining intrinsically safe IO signal device which characterized in that includes: this ampere of power module, this ampere of power module's GND end is connected with voltage stabilizing module's first end electricity, voltage stabilizing module's second end with this ampere of power module's voltage output end is connected with isolation optoelectronic coupler's this ampere of input signal terminal electricity, isolation optoelectronic coupler's output signal terminal is connected with the direct current power terminal electricity.

2. The mining intrinsically safe IO signal device of claim 1, wherein the voltage regulator module comprises a first voltage regulator tube and a second voltage regulator tube, the first voltage regulator tube and the second voltage regulator tube being connected in parallel.

3. The mining intrinsically safe IO signal device of claim 1 or 2, wherein a first resistor is arranged between the voltage output end of the intrinsically safe power module and the voltage stabilizing module, a first end of the first resistor is electrically connected with the voltage output end of the intrinsically safe power module, and a second end of the first resistor is electrically connected with a second end of the voltage stabilizing module.

4. The mining intrinsically safe IO signaling device of claim 3, wherein a second end of the first resistor is electrically connected to a first end of a second resistor, and a second end of the second terminal is electrically connected to an intrinsically safe input signal terminal of the isolation optocoupler.

5. The mining intrinsically safe IO signaling device of claim 1, wherein the input of the intrinsically safe power module is electrically connected to an ac input power terminal.

6. The mining intrinsically safe IO signaling device of claim 5, wherein the AC input power supply terminal is connected to an AC input power supply, the AC input power supply is of a wide voltage design, and the AC input power supply voltage range is 85-265V.

7. The mining intrinsically safe IO signal device of claim 1, wherein the intrinsically safe power module is an intrinsically safe power module SPA-2.5S5W, the output power of the voltage output end of the intrinsically safe power module is 5V, the direct-current power supply terminal is a direct-current 24V terminal, and the output voltage is 24V.

8. The mining intrinsically safe IO signaling device of claim 1, wherein a plurality of the isolation photocouplers are provided, the isolation photocouplers including a plurality of intrinsically safe input signal terminals and a plurality of output signal terminals.

9. The mining intrinsically safe IO signaling device of claim 8, wherein a plurality of the isolation photocouplers are combined into one input and output signal isolation element.

10. The mining intrinsically safe IO signaling device of claim 8 or 9, wherein the intrinsically safe input signal terminal and the intrinsically safe output signal terminal of the isolation photocoupler are both wire-pressed terminals.